The 23-year-old Leon started off wearing a skin-tight tie-dye tank dress with a laced bodice, but soon ditched the outfit for a flesh-toned G-string and nipple covers to join the heaving mass of bodies.

Lourdes Leon (left) at Art Basel in Miami. Picture: Instagram

Lourdes Leon kisses a woman named “Kristen”. Picture: Instagram

Participants stripped down to their undies. Picture: Instagram

Video posted to Instagram by Peter Davis, editor in chief of the fashion magazine L'Officiel, shows barely dressed men and women writhing in ecstasy for five long minutes as onlookers wearing protective paper jumpsuits ogle the scene.

The surreal tableau stopped short of anyone doing the deed, Davis stressed.

"There was kissing and grinding - everything but X-rated action, which was simulated," he said.

Lourdes “Lola” Leon is making a name for herself as a model and performance artist. Picture: Instagram

"It lasted maybe five minutes, but it seemed a lot longer and was weird because people were cheering."

While this was apparently her first public "orgy," Leon - whose father is Madonna's ex-boyfriend Carlos Leon - is no stranger to the risqué.

Madonna with her daughter, Lourdes “Lola” Leon. Picture: Instagram

In 2017, the rising model attended a New York Fashion Week party hosted by the porn-sharing site Pornhub, and she showed up at last year's CFDA/Vogue Fashion Fund Awards in a sheer dress that would certainly make papa preach.

Lourdes Leon pictured at Art Basel in Miami. Picture: Instagram

And in 2018, she walked the catwalk for Gypsy Sport topless except for an array of strategically placed seashells.

Last week, Desigual made waves at the Miami Beach art fair by setting up a huge, inflatable vagina on South Beach.